Channels
A channel is a communication mechanism that, among other things, allows goroutines to exchange data. Firstly, each channel allows the exchange of a particular data type, which is also called the element type of the channel, and secondly, for a channel to operate properly, you need someone to receive what is sent via the channel. You should declare a new channel using make() and the chan keyword (make(chan int)), and you can close a channel using the close() function. You can declare the size of a channel by writing something like make(chan int, 1).
A pipeline is a virtual method for connecting goroutines and channels so that the output of one goroutine becomes the input of another goroutine using channels to transfer your data. One of the benefits that you get from using pipelines is that there is a constant data flow in your program, as no goroutine or channel has to wait for everything to be completed in order to start their execution. Additionally, you use fewer variables...
